Classification / Names
Nomi Comuni | Sinonimi | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Environment: milieu / climate zone / depth range / distribution range
; marino associati a barriera corallina; distribuzione batimetrica 0 - 200 m (Ref. 86942). Tropical; 9°N - 26°S
Indo-West Pacific: widespread, from South Africa to the central Pacific Islands, north to Japan (Okinawa). Frequently confused with Himantura jenkinsii (Ref. 9840).
Length at first maturity / Size / Peso / Age
Maturity: Lm 115.4, range 120 - ? cm
Max length : 183 cm TL maschio/sesso non determinato; (Ref. 40637); peso massimo pubblicato: 18.5 kg (Ref. 40637)
Uniformly tan to brownish pink dorsally. Inhabits lagoon and seaward sand flats from the intertidal to at least 200 m. Occurs in large aggregations (Ref. 37816).
Occurs in aggregations over soft bottoms of the inner continental shelf, often near coral reefs (Ref. 9840). Ovoviviparous (Ref. 50449). Size at birth at about 55 cm WD (Ref. 6871). Feeds on fishes, crustaceans and molluscs (Ref. 89972). Common catch of the demersal tangle net, bottom trawl and, to a lesser extend, longline fisheries. Utilized for its meat, skin (high value) and cartilage (Ref.58048). By-catch of prawn trawlers (Ref. 6871).
Life cycle and mating behavior
Maturità | Riproduzione | Deposizione | Uova | Fecundity | Larve
Exhibit ovoviparity (aplacental viviparity), with embryos feeding initially on yolk, then receiving additional nourishment from the mother by indirect absorption of uterine fluid enriched with mucus, fat or protein through specialised structures (Ref. 50449). Distinct pairing with embrace (Ref. 205). Size at birth ~ 55 cm WD (Ref.58048).
Mould, B., 1994. A world list of rays. The scientific nomenclature and distribution of the recent Batoidea (Batoidea, Elasmobranchii, Chondrichthyes). University of Nottingham, [UK]. 82 p. (Ref. 8630)
IUCN Red List Status (Ref. 119314)
CITES (Ref. 115941)
Threat to humans
Pesca: scarso interesse commerciale
BibliografiaAcquacolturaProfilo di acquacolturaVarietàGeneticaFrequenze allelicheEreditarietàMalattieElaborazioneMass conversion
Estimates of some properties based on models
Preferred temperature (Ref. 115969
): 23.7 - 28.2, mean 26.7 (based on 471 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5312 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00347 (0.00165 - 0.00727), b=3.03 (2.83 - 3.23), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245
Trophic Level (Ref. 69278
): 3.7 ±0.57 se; Based on food items.
Resilienza (Ref. 69278
): Basso, tempo minimo di raddoppiamento della popolazione 4.5 - 14 anni (Assuming fecundity<100).
Vulnerability (Ref. 59153
): High to very high vulnerability (70 of 100) .